diff --git a/plugins/out_stackdriver/stackdriver.h b/plugins/out_stackdriver/stackdriver.h
index 66462cf4fab..fa5cb2e2b10 100644
--- a/plugins/out_stackdriver/stackdriver.h
+++ b/plugins/out_stackdriver/stackdriver.h
@@ -183,8 +183,8 @@ struct flb_stackdriver {
     flb_sds_t log_name_key;
     flb_sds_t http_request_key;
     int http_request_key_size;
-    int autoformat_stackdriver_trace;
-    int test_log_entry_format;
+    bool autoformat_stackdriver_trace;
+    bool test_log_entry_format;
 
     flb_sds_t stackdriver_agent;